The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-503-7586, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Indeeco Llc Dba Indeeco. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-503-7586 |
| Primary Part Number | 529X-134566 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Indeeco Llc Dba Indeeco |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.000 |
| Terminal Quantity | 2 |
| Length | 50.375 INCHES MINIMUM AND 50.875 INCHES MAXIMUM IN |
| Voltage in Volts and Current Type | 440.0 AC SINGLE VOLTAGE |
| Body Style | CARTRIDGE TYPE |
| Hole or Slot Quantity | 3 |
| Flange Thickness | 0.065 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.110 INCHES MINIMUM AND 1.275 INCHES MAXIMUM IN |
| Maximum Wattage Rating in Watts | 1050.0 SINGLE VOLTAGE |
| Terminal Length | 24.500 INCHES NOMINAL IN |
| Mounting Facility Length | 1.495 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN |
| Element Connection Style | WIRE LEAD |
| Outside Diameter | 0.563 INCHES NOMINAL IN |
| Effective Heating Length | 40.375 INCHES MINIMUM AND 40.875 INCHES MAXIMUM IN |
| Terminal Box Environmental Protection | MOISTURE RESISTANT |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | STEEL CORROSION RESISTING SHEATH |
| Mounting Facility Width | 1.495 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN |
| Hole Diameter | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Element Quantity | 12 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 43-505-045 | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| 1298-10-D FIND 37 | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| 529X-134566 PRIMARY | Indeeco Llc Dba Indeeco (USA) |
| 529X-135084 | Indeeco Llc Dba Indeeco (USA) |
| Reference | Meaning |
|---|---|
| 45-505-045 | 5/9 Secondary reference Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| 529X134566 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 4508XP903 | 5/9 Secondary reference Indeeco Llc Dba Indeeco |
NSN 4520-01-503-7586 is a Heating Element,electrical,immer, manufactured by Indeeco Llc Dba Indeeco, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-503-7586 has 4 manufacturer part numbers on file: 43-505-045 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil), 1298-10-D FIND 37 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil), 529X-134566 (Indeeco Llc Dba Indeeco), 529X-135084 (Indeeco Llc Dba Indeeco).
Key specifications for 529X-134566: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.000; Terminal Quantity: 2; Length: 50.375 INCHES MINIMUM AND 50.875 INCHES MAXIMUM IN. 23 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.